Sage 50 Accounts vs IRIS KashFlow
Verified ratings, real UK pricing and the compliance detail, weighed side by side — with a written verdict at the end.
Sage 50 Accounts
Accounting Software
- United Kingdom
- Ireland
- Phone
- Live Chat
- Knowledge Base
- Forum
IRIS KashFlow
Accounting Software
- United Kingdom
- Phone
- Knowledge Base
- Forum
Sage 50 Accounts leads on verified reviews by 0.2 of a point — 4.2 against 4.0 for IRIS KashFlow.
The short version
What each one costs and how each one rates, side by side. Only the rows where leading means something are marked; vendor and availability are in the overview above.
| Detail | Sage 50 Accounts | IRIS KashFlow |
|---|---|---|
| What it costs | ||
| Starting priceLowest paid tier, excluding VAT | £115/mo | £10.50/mo |
| Free version | NoNo | NoNo |
| Free trial | YesYes | YesYes |
| How it rates | ||
| Overall ratingMean of verified Assaylist reviews | 4.2 | 4.0 |
| Verified reviewsVolume is evidence, not a score — this row is not a contest | 201 reviews | 221 reviews |
Highlighted where one clearly leads. Rows without a highlight are not a contest.
How reviewers score them
Across the four dimensions we ask every reviewer about — and, below, the star split each average is built from.
- Sage 50 Accounts
- IRIS KashFlow
| Dimension | Sage 50 Accounts | IRIS KashFlow | Gap |
|---|---|---|---|
| Ease of use | 4.1 | 4.0 | 0.1 to Sage 50 Accounts |
| Value for money | 4.0 | 3.9 | 0.1 to Sage 50 Accounts |
| Customer support | 4.1 | 4.0 | 0.1 to Sage 50 Accounts |
| Functionality | 4.0 | 4.0 | Level |
What each average is made of
Two products can share an average and not share a reputation. These bars show the star split behind each score.
| Product | 5 star | 4 star | 3 star | 2 star | 1 star |
|---|---|---|---|---|---|
| Sage 50 Accounts | 43% (86 reviews) | 39% (78 reviews) | 12% (25 reviews) | 4% (9 reviews) | 1% (3 reviews) |
| IRIS KashFlow | 37% (82 reviews) | 40% (89 reviews) | 14% (30 reviews) | 6% (13 reviews) | 3% (7 reviews) |
Feature by feature
Everything either vendor publishes, split into what separates them and what they share.
- Both products
- 15%
- Only Sage 50 Accounts
- 1359%
- Only IRIS KashFlow
- 836%
22 features listed across both products.
What only one of them does
Sage 50 Accounts
13- Advanced stock management
- AI document capture
- Automatic bank reconciliation
- Bespoke reporting
+ 9 more in the table below
IRIS KashFlow
8- Bank reconciliation
- Expense tracking
- Invoicing and quotes
- IRIS group backing
+ 4 more in the table below
Showing 22 of 22 features
| Detail | Sage 50 Accounts | IRIS KashFlow |
|---|---|---|
| Where they differ · 21 | ||
| Advanced stock management | YesYes | NoNo |
| AI document capture | YesYes | NoNo |
| Automatic bank reconciliation | YesYes | NoNo |
| Bespoke reporting | YesYes | NoNo |
| Departments and budgets | YesYes | NoNo |
| Fixed asset register | YesYes | NoNo |
| Foreign currency invoicing | YesYes | NoNo |
| MTD for Income Tax Self Assessment | YesYes | NoNo |
| Multi company reporting | YesYes | NoNo |
| Project costing | YesYes | NoNo |
| Sage Copilot | YesYes | NoNo |
| Sales and purchase order processing | YesYes | NoNo |
| Supplier payments | YesYes | NoNo |
| Bank reconciliation | NoNo | YesYes |
| Expense tracking | NoNo | YesYes |
| Invoicing and quotes | NoNo | YesYes |
| IRIS group backing | NoNo | YesYes |
| Multi user on higher tier | NoNo | YesYes |
| Optional RTI payroll add on | NoNo | YesYes |
| Reporting | NoNo | YesYes |
| VAT returns | NoNo | YesYes |
| Where they match · 1 | ||
| Making Tax Digital for VAT | YesYes | YesYes |
A dash means the vendor has not published a feature list — which is not the same as the feature being unavailable.
How they handle UK obligations
Checked against the vendor's own documentation or HMRC's published list. A dash means we have not verified it — never that it is missing.
| Detail | Sage 50 Accounts | IRIS KashFlow |
|---|---|---|
| Verified against vendor documentation | ||
| HMRC-recognised for MTD for VAT | YesYes | YesYes |
| HMRC-recognised for MTD for ITSA | YesYes | Not listedNot listed |
| Making Tax Digital ready | YesYes | YesYes |
| CIS support | YesYes | Not listedNot listed |
| Open Banking bank feeds | YesYes | Not listedNot listed |
| UK-based support | Telephone support from Sage UK | UK support team |
What each tier costs
Both line-ups on one ladder, so the middle tier on one side sits next to the middle tier on the other.
Sage 50 Accounts
IRIS KashFlow
Sage 50 Accounts Standard
£115/mo
- 2 standard users included
- MTD for VAT and Income Tax
- Automated expense management
Starter
£10.50/moLower
- Invoicing and quotes
- Bank reconciliation
- VAT returns
Sage 50 Accounts Professional
£234/mo
- Everything in Standard
- Sales and purchase orders
- Fixed asset register
Business
£22/moLower
- More features
- Multi user
- Payroll add on available
Rungs are matched by position in each vendor’s own line-up, not by what the tiers include — an entry plan on one side may cover more than the other. Prices exclude VAT unless stated, and per-seat plans are quoted per seat. Always confirm on the vendor’s own site.
Which should you choose?
Two answers, because there are two right ones depending on what you need.
Choose Sage 50 Accounts if
- It lists 13 features IRIS KashFlow does not, including advanced stock management.
- It covers more of the UK obligations we check — 5 of them against 2.
Choose IRIS KashFlow if
- It costs less to get started — £10.50/mo against £115/mo.
- It lists 8 features Sage 50 Accounts does not, including bank reconciliation.
On verified Assaylist reviews, Sage 50 Accounts currently rates 4.2 against 4.0 for IRIS KashFlow. That gap is not the whole story: Sage 50 Accounts starts at £115/mo and IRIS KashFlow at £10.50/mo, so the right answer depends on the tier you actually need and on which one handles your UK obligations. Read both profiles before you commit, and confirm current pricing on the vendor's own site.
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